You know, in the end, it's not really about fitting into any one role, one preconceived notion of what a Dom should be and what a sub should be. You need to be whatever makes you and your significan other comfortable. Talk to each other. Listen to each other. And in the end, reach a middle ground and be happy with it. There are a lot of so-called 'experts' in BDSM who will tell you that a sub has to be like this, and a Dom has to be like that. Don't listen to them. Find the place where you are happy, with yourself and with your partner, and toss what everyone else says out the window. Because it's only you two in the relationship; not them.